NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 13t groupset_family_advent_x LG: 5'11" - 6'3"

LG: 5'11" - 6'3"

125 x 409 mm XS–SM

One-piece machined steel X-Dome design for weight savings

– Caliper weighs only 145 grams

NEW Surly Cogs Driver and Single Cog Surly Single Cassette Cog 3/32" Splined 13t groupset_family_advent_x LG: 5'11" - 6'3"Surly Single Speed Cogs. Designed as a singlespeed cog, but may also be stacked and used with 9 speed shifter. Multi gear use will result in slower, less crisp shifting than cogs designed for multi gear systems Fit Shimano freehub splines SCM 415 hardened chromoly steel Photo for color and material reference only Tooth Count: 13 Cassette Body Type: Shimano 7 Speed Material: Steel Drivetrain Speeds: Single Speed 3 32"